Entity-page header convention: eyebrow → h0 → identity row (from way.space builder page)

[maksika]

way.space now renders three entity pages on one header skeleton (tool page since 2026-07-17; builder page in LineageLabs/way-space#599; organisation page next in LineageLabs/way-space#600):

1. Breadcrumbs (mono-label trail, optional right-aligned actions)
2. ONE mono-label eyebrow: {Entity} · {Qualifier} — e.g. Builder · Verified member, Framework · coding; no full stop
3. h1.h0 name (break-words)
4. Optional handle line (text-base text-muted-foreground) and tagline (text-lg text-muted-foreground)
5. Identity row: size-16 rounded avatar/logo + trust pills (.badge.b-verified, grade Badge) + canonical link pills (rounded-full border border-foreground/15 px-3 py-1 text-xs, Simple Icons brand mark or Lucide glyph + label + external-link icon)
6. Optional quiet notice box under the row: rounded-2xl bg-muted px-4 py-3 text-sm ring-1 ring-foreground/10

Body: hex-rule then grid gap-12 lg:grid-cols-[minmax(0,1fr)_320px], main sections as h2.mono-label "01 / Title" with scroll-mt-[var(--site-nav-total)], sidebar blocks as h3.section-label.

Proposal: document this as an "entity header" pattern in the blueprint module docs (mono-label / hex-rule already live there) so way.je and future apps can reuse it, and consider promoting the link-pill and quiet-notice classes to named helpers. Reference implementation: src/lib/components/builder/BuilderHeader.svelte in way-space.